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CVE-2009-2691

13
FAUCET Score

CVE-2009-2691 describes a local information disclosure vulnerability in the Linux kernel (versions 2.6.30.4 and earlier). A race condition within the mm_for_maps function allows local users to read sensitive maps and smaps files under /proc, potentially revealing memory layout information. This vulnerability has a low severity CVSS score (2.1) due to its local attack vector and limited impact (confidentiality only). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.30.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
2.6.30CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.30:*:*:*:*:*:*:*
2.6.30CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.30:rc1:*:*:*:*:*:*
2.6.30CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.30:rc2:*:*:*:*:*:*
2.6.30CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.30:rc3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

AV:L/AC:L/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 52nd percentile among its peer group of 2,096 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: MRG for RHEL-5Fixed in: kernel-rt-0:2.6.24.7-137.el5rt
View patch

Vendor Advisories (1)

redhatCVE-2009-2691Moderate

kernel: /proc/$pid/maps visible during initial setuid ELF loading

Jul 10, 2009

References

git.kernel.org
git.kernel.org
git.kernel.org
lkml.org / lkml/2009/6/23/652
lkml.org / lkml/2009/6/23/653
Patch
marc.info
Patch
marc.info
Patch
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/36265
Vendor Advisory
secunia.com / advisories/36501
exchange.xforce.ibmcloud.com / vulnerabilities/52401
rhn.redhat.com / errata/RHSA-2009-1540.html
redhat.com / archives/fedora-package-announce/2009-August/msg01256.html
debian.org / security/2010/dsa-2005
openwall.com / lists/oss-security/2009/08/11/1
securityfocus.com / bid/36019
vupen.com / english/advisories/2009/2246
Vendor Advisory